Research Article

State Estimation Based on Sigma Point Kalman Filter for Suspension System in Presence of Road Excitation Influenced by Velocity of the Car

Figure 20

The estimated states for the case of varying the mass of the sprung. Case 1: ms = 94.38 kg, blue solid line for suspension system states and red solid line for estimated states. Case 2: ms = 124.3 kg, orange solid line for suspension system states and purple solid line for estimated states. Case 3: ms = 154.3 kg, green solid line for suspension system states and light blue solid line for estimated states. (a) zs and zs hat. (b) dzs/dt and dzs/dt hat. (c) zw and zw hat. (d) dzw/dt and dzw/dt hat. (e) zr and zr hat.
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